Phytoplankton dynamics and cyanobacterial dominance in Murchison Bay of Lake Victoria (Uganda) in relation to environmental conditions

Simple item page
dc.contributor.authorHaande, Sigrid
dc.contributor.authorRohrlack, Thomas
dc.contributor.authorSemyalo, Ronald P.
dc.contributor.authorBrettum, Pal
dc.contributor.authorEdvardsen, Bente
dc.contributor.authorLyche-Solheim, Anne
dc.contributor.authorSørensen, Kai
dc.contributor.authorLarsson, Petter
dc.date.accessioned2023-01-10T09:26:13Z
dc.date.available2023-01-10T09:26:13Z
dc.date.issued2011
dc.description.abstractMurchison Bay is a shallow embayment in the north-western part of Lake Victoria, strongly influenced by urban pollution from the Ugandan capital Kampala. Two stations, representing the semi-enclosed innermost part of the bay and the wider outer part of the bay, were sampled in the period from April 2003 to March 2004, in order to assess the phytoplankton community and the nutrient status in the bay. Murchison Bay was highly eutrophic with average concentrations (n¼25) of total phosphorous 490 mg L1 and total nitrogen 41100 mg L1 in the inner part of the bay. The phytoplankton community was dominated by a variety of cyanobacterial species and diatoms. Cyanobacteria were dominant in the whole bay, whereas diatoms were more abundant in the outer part of the bay. Moreover, the proportion of N-fixing species like Anabaena sp. was higher in the outer part of the bay, whereas species like Microcystis sp. were more abundant in the inner part of the bay. The phytoplankton community, especially in the outer part of the bay, may be influenced by light limitation. Low NO3–N concentrations in the bay may also indicate a possible N-limitation, thus favouring growth of N-fixing cyanobacteria. The open bay is, however, a complex system, and additional environmental factors and loss processes most likely affect the phytoplankton communityen_US
dc.identifier.citationHaande, S., Rohrlack, T., Semyalo, R. P., Brettum, P., Edvardsen, B., Lyche-Solheim, A., ... & Larsson, P. (2011). Phytoplankton dynamics and cyanobacterial dominance in Murchison Bay of Lake Victoria (Uganda) in relation to environmental conditions. Limnologica, 41(1), 20-29. doi:10.1016/j.limno.2010.04.001en_US
dc.identifier.other10.1016/j.limno.2010.04.001
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/6861
dc.language.isoenen_US
dc.publisherLimnologicaen_US
dc.subjectPhytoplanktonen_US
dc.subjectNutrientsen_US
dc.subjectEutrophicationen_US
dc.subjectCyanobacteriaen_US
dc.subjectLake Victoriaen_US
dc.titlePhytoplankton dynamics and cyanobacterial dominance in Murchison Bay of Lake Victoria (Uganda) in relation to environmental conditionsen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
PhytoplanktondynamicsandcyanobacterialdominanceinMurchisonBayof.pdf
Size:
704.55 KB
Format:
Adobe Portable Document Format
Description:
Article
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Natural Sciences